JP6483783B1 - Golf tee - Google Patents

Abstract

An object of the present invention is to provide a golf tee that is simple in configuration, can be used repeatedly, and is inexpensive and economical. A golf ball mounting portion, a ground piercing portion, and a connecting portion 15 interposed between the golf ball mounting portion and a ground piercing portion. The three constituent portions are integrally molded by the same synthetic resin material. Golf tee 1 [Selection] Figure 1

Description

  The present invention relates to a golf tee. More specifically, the present invention has a simple configuration but has an appropriate rigidity and flexibility, and the golf tee breaks when a golf tee and a club head collide during a tee shot. And when the tee is shot, the golf tee is held at the set point as it is, or even if it is skipped, the golf tee will land within the immediate vicinity of the set point. Because it is configured, the time and effort to search for the golf tee after a tee shot are greatly deleted, and as a result, it relates to a golf tee having an excellent effect that the time for golf play can be greatly reduced. is there.

Conventionally, when playing golf, the golf ball receiving portion and the ground piercing portion are usually formed integrally when performing the first tee shot at the tee ground in each hole. By using a golf tee made of wooden or synthetic resin, mounting the golf ball on the golf ball receiving portion of the golf tee pierced on the ground surface of the tee ground, and hitting the golf ball with a desired club A golf game is started by flying the golf ball in a desired direction by a desired distance.
By the way, since the golf tee is usually hit with the club at the same time when the golf ball is hit with the desired club, it is easily broken, so it cannot be expected to be used multiple times. If a large number of new products are prepared in advance and the golf tee is damaged, it will be used in exchange for a new golf tee, which is inconvenient and will lead to an increase in economic cost. It included a problem to say.

On the other hand, when hitting the teeed-up golf ball with a desired club, the golf tee is also hit with the club at the same time. The golf tee often scatters at a considerable distance at the time of a shot, and each time, the current situation is that efforts are made to find the scattered golf tee. This is one of the causes for delaying the entire golf play time.
Furthermore, when the teeed-up golf ball is hit with a desired club, considerable frictional resistance and impact resistance are generated between the club and the golf tee. As a result, the golf ball is applied to the golf ball. The desired impact strength to be reduced is diminished, and as a result, the flight distance of the golf ball is shortened without increasing, or the face surface of the club is slightly shifted due to the generation of the frictional resistance and impact resistance, so that the golfer's There have been many problems that the golf ball flies in a direction different from the desired flight direction.
Many proposals have been made so far in order to solve the above-described various problems related to golf tees. As a main improvement technique, for example, JP 2010-178966 A (patent document) As disclosed in 1), a golf tee is disclosed in which a golf ball mounting portion and a ground piercing portion are integrally formed of a synthetic resin, and a constricted portion is formed at an intermediate portion thereof. The technical idea of such an invention is that when a golfer tees up a golf ball teeed up with a desired club, the golf tee is thinned and made transparent so that the golf tee does not get into the eyes. Obviously, it is intended to prevent stabilization, and is not intended to give flexibility to the golf tee to prevent its breakage or reduce impact resistance.

Japanese Patent Laid-Open No. 2007-98085 (Patent Document 2) discloses a golf ball by shifting the center portion of the golf ball mounting portion of the golf tee and the center line portion of the ground piercing portion from the same viewpoint. Although it is disclosed that the golf tee is not aware of the existence of the golf tee so as to prevent mental instability at the time of hitting, it is disclosed in the golf tee itself. It is clear that it is not intended to give flexibility, prevent its destruction and reduce impact resistance.
On the other hand, in Japanese Patent Application Laid-Open No. 2004-254962 (Patent Document 3) and Japanese Patent Application Laid-Open No. 2004-254961 (Patent Document 4), a golf ball mounting portion and a ground piercing portion are configured as separate members, and the golf ball A golf tee configured to be able to slide a connecting portion connected and fixed to the ground piercing portion of the mounting portion is disclosed, but in any invention, the golf ball mounting portion and the ground piercing portion The connecting part is individually formed of different synthetic resin materials, and has a structure in which they are connected and formed through fitting and screwing operations. Although the effect of reducing frictional resistance and impact resistance can be seen, the manufacturing process is complicated and the manufacturing cost of the golf tee itself will rise, making it difficult to say that it is an economical golf tee. Yes.

Furthermore, in Japanese Patent No. 4382563 (Patent Document 5), the golf ball mounting portion and the ground piercing portion are individually configured using different synthetic resin materials, and the golf ball mounting portion and the ground piercing portion are arranged. Although a golf tee is disclosed that is joined via a coil spring portion made of another synthetic resin material, the golf ball mounting portion, the ground piercing portion, and the connecting portion made of the coil spring portion are synthesized differently from each other. It has a structure in which it is individually formed with resin material and connected through a fitting and screwing operation, and it surely has the effect of reducing the flexibility and frictional resistance and impact resistance when hitting the golf tee. Although it is observed, the manufacturing process is further complicated, and the manufacturing cost of the golf tee itself is greatly increased, so it is difficult to say that it is an economical golf tee.
That is, in a conventional golf tee, at the time of a tee shot, when the golf tee collides with a desired club head, the golf tee is held at the set point as it is or is skipped. However, if the golf tee is designed to land within the vicinity of the set point, the time and effort for searching for the golf tee after the tee shot will be greatly reduced. In other words, in the conventional golf tee, at the time of a tee shot, when the golf tee collides with a desired club head. In addition, the golf tee is prevented from being damaged, and the frictional resistance and impact resistance at the time of collision between the golf tee and the club head There is a need for a golf tee that can be reduced to increase the flight distance of the golf ball and improve the certainty of the flight direction and has an economical effect that can be used easily and repeatedly as many times as possible. Was growing.

JP 2010-178966 A JP 2007-098085 A Japanese Patent Application Laid-Open No. 2004-254962 JP 2004-254961 A Japanese Patent No. 4382563

Accordingly, an object of the present invention is to improve the above-mentioned problems of the prior art, achieve a simple structure and light weight, and at the time of a collision between the golf tee and a desired club head during a tee shot. In addition to preventing breakage of the golf tee, the frictional resistance and impact resistance at the time of collision between the golf tee and the club head are reduced to increase the flight distance of the golf ball and improve the certainty of the flight direction. It is an object of the present invention to provide a golf tee that is economical and easy to use and has an economical effect that can be used repeatedly any number of times.
The present invention relates to a golf tee. More specifically, the present invention relates to a golf tee, which has a simple configuration but has an appropriate rigidity and flexibility, and the golf tee at the time of a collision between the golf tee on a tee shot and a club head. The golf tee is configured so that the golf tee is held at the set point at the time of the tee shot or the golf tee is landed in the vicinity of the set point even if it is skipped. Since the time and effort to search for the golf tee after the tee shot are greatly eliminated, the golf play time can be greatly reduced. At the same time, the resistance at the time of collision between the golf tee and the club head during a tee shot is reduced. In addition, since the golf tee is less damaged by this, it can be used many times and is economical, and at the same time, the impact force applied to the golf ball is not reduced. The present invention relates to a golf tee having an excellent effect of being stretched.
Further, the golf tee according to the present invention has a bending effect based on the flexibility generated from the specific shape of the connecting portion and the characteristics of the synthetic resin used, so that the tee shot the golf tee, the effect is also coming out of expectation that is held in that position without scattering from the tee up the point.

In order to solve the above-described problems of the prior art and achieve the above-described object of the present invention, the present invention basically adopts the following technical configuration.
That is, the first aspect of the present invention comprises a hollow cylindrical body portion having a desired length and a desired cross-sectional shape, and one end portion (first end portion) of the hollow cylindrical body portion is A closed bottom surface portion having a first diameter portion D1 is formed, and a plurality of golf ball support piece portions are provided at the other end portion (second end portion) of the hollow cylindrical body portion. A golf ball mounting portion formed with a golf ball receiving portion that is radially extended and protruded, and
One end portion (third end portion) on the side facing the golf ball mounting portion in the longitudinal direction of the solid rod portion, comprising a solid rod portion having a desired length and a desired cross-sectional shape. Part) has a second diameter part D2 having a length larger than that of the first diameter part D1 in the golf ball mounting part, and the other end in the longitudinal direction of the cylindrical body part. In the portion (fourth end portion), a sharp end portion is formed, and in the portion facing the golf ball mounting portion in the one end portion (third end portion) A ground piercing portion in which a flange portion having a fourth diameter portion D4 having a length greater than the length of the second diameter portion D2 is formed;
The one end portion (first end portion) of the golf ball mounting portion and the one end portion (third end portion) of the ground piercing portion facing the golf ball mounting portion. The one end portion (first end portion) of the golf ball mounting portion that has a desired length and a desired cross-sectional shape and is connected and disposed between the flange portion provided. And a connecting member having a third diameter portion D3 having a shorter length than the first diameter portion D1, and the golf ball mounting portion and the ground stab. The portion and the connecting member are golf tees characterized by having a structure integrally molded with a synthetic resin material having the same composition, and as a second aspect according to the present invention, In the first aspect of the present invention described above, the synthetic tree The material is different from so-called general-purpose synthetic resins such as polyolefin-based synthetic resins, polypropylene-based synthetic resins, and ABS synthetic resins. Nylon 6 resin, nylon 66 resin, nylon 12 resin and thermoplastic polyester elastomer resin or polyacetal resin, polycarbonate resin It is a golf tee characterized by being one synthetic resin material selected from so-called engineering resins.

On the other hand, as a third aspect according to the present invention, in each of the first and second aspects according to the present invention described above, an outer peripheral surface of the solid bar portion in the ground piercing portion is provided. , along the longitudinal direction of the in circumstances rod portion at a predetermined interval in the direction perpendicular to the longitudinal central axis of the in circumstances rod portion, a plurality of consisting of an annular protrusion having a predetermined height A golf tee characterized in that a friction generating portion is arranged.
Due to the presence of the friction generating part, the frictional property between the ground pierced part of the golf tee and the soil part in the ground is greatly enhanced at the time of a tee shot. Can be suppressed.

  Since the golf tee according to the present invention employs the technical configuration as described above, the configuration is simple, the weight is reduced, and the golf tee and the desired club head are at the time of tee shot. In the event of a collision, the golf tee is prevented from being damaged, and the frictional resistance and impact resistance of the golf tee and the club head are reduced, thereby increasing the flight distance of the golf ball and ensuring the flight direction. It is possible to provide a golf tee that is economical and easy to use, and can be used repeatedly as many times as possible because it is an integrally molded product that can improve the performance. .

FIG. 1 is a side view showing an example of the configuration of a specific example in the golf tee according to the present invention. FIG. 2 is a sectional view showing an example of the configuration of a specific example in the golf tee according to the present invention. FIG. 3 is a perspective view showing an example of the configuration of a specific example in the golf tee according to the present invention.

Hereinafter, a specific configuration example of the golf tee according to the present invention will be described in detail with reference to the drawings.
That is, FIG. 1 is a diagram illustrating the configuration of a specific example of the golf tee 1 according to the present invention. In the drawing, the golf tee 1 includes a hollow cylindrical body portion 2 having a desired length and a desired cross-sectional shape. One end portion (first end portion) 3 of the hollow cylindrical body portion 2 forms a closed bottom surface portion 4 having a first diameter portion D1, and the hollow cylindrical body portion 2 The other end portion (second end portion) 5 is provided with a golf ball receiving portion 7 in which a plurality of golf ball support piece portions 6 are individually extended and projected radially. Part 8;
It consists circumstances rod portion 9 in having a desired length and a desired cross-sectional shape, in the longitudinal direction of the in circumstances rod portion, one end of the side to face the golf ball mounting portion 8 (3 End portion 10) has a second diameter portion D2 having a length larger than that of the first diameter portion D1 of the golf ball mounting portion 8, and the longitudinal direction of the solid rod body portion . The other end portion (fourth end portion) 11 has a sharp end portion 12 and the golf at the one end portion (third end portion) 10. A ground piercing portion 14 in which a flange portion 13 having a fourth diameter portion D4 having a length larger than the length of the second diameter portion D2 is joined to a portion facing the ball mounting portion 8; The one end portion (first end portion) 3 of the golf ball mounting portion 8 and the golf ball tower The desired length and the desired length are connected and arranged between the flange portion 13 provided at the one end portion (third end portion) 10 of the ground piercing portion 14 facing the portion 8. A third portion having a cross-sectional shape and a length shorter than the first diameter portion D1 at the one end portion (first end portion) 3 of the golf ball mounting portion 8; It is the golf tee 1 comprised from the connection part 15 which has the diameter part D3, Comprising: The golf ball mounting part 8, the ground piercing part 14, and the connection part 15 are the composition which consists of the same composition. The golf tee 1 is characterized by having a structure integrally molded with a resin material.

  The present inventor has eagerly studied the configuration and materials of golf tees for achieving the object of the present invention in order to solve the conventional problems as described above, and repeated a number of prototype designs and a number of comparative experiments. As a result, so-called engineering plastics with high mechanical strength, which has been hardly considered, are used as the material of the golf tee, and the structure of the golf tee and the dimensions of each part are within a specific range. By using the same, that is, using only one type of synthetic resin, the above-described excellent impact resistance and flexibility, little breakage, and the club head portion against the golf ball The impact force is not reduced, and the flight distance of the golf ball can be increased and the flight direction can be optimized. It can be prevented that, in which integrated a molded product is therefore less expensive, it has become known from the technical concept to say that it is possible to obtain an economical golf tee with excellent operability.

However, in a conventional integrally molded product using a synthetic resin related to a golf tee, a golf tee having excellent characteristics as the object of the present invention is obtained by using one kind of a specific synthetic resin component. The technical idea of manufacturing is not disclosed at all, and there is no known example suggesting it.
In other words, in the conventional golf tee manufacturing method described above, only one synthetic resin component is used when manufacturing a golf tee having excellent characteristics as the object of the present invention. Therefore, it is impossible to produce the excellent golf tee intended in the present invention by the integral molding technique. For this purpose, the golf ball mounting portion, the ground piercing portion, and the connecting portion are combined. It was impossible to produce a golf tee similar to the present invention, except that after molding with separate synthetic resin materials, the parts were combined by manual or mechanical operation. .

On the other hand, when the golf tee according to the present invention is integrally formed, the inventor of the present application requires individual characteristics required for the golf ball mounting portion 8, the ground piercing portion 14, and the connecting portion 15. In order to select a synthetic resin material that can satisfy all of the above requirements, the selected synthetic resin component, the golf ball mounting portion 8, the ground piercing portion 14, and the connecting portion 15 are arranged. By adopting a technical configuration that specifies a specific dimension and limits a combination, the same characteristic, that is, a single type of synthetic resin is used to perform integral molding, thereby satisfying the target characteristics of the present invention. Golf tees can be manufactured.

From the above viewpoint, the present inventor has repeated numerous experiments and evaluations regarding production and properties using many types of moldable synthetic resins that can be used in the present invention. Select from so-called engineering resins such as nylon 6 resin, nylon 66 resin, nylon 12 resin and thermoplastic polyester elastomer resin or polyacetal resin, polycarbonate resin, etc., which are different from so-called general-purpose synthetic resins such as polypropylene synthetic resin and ABS synthetic resin It has been found that one synthetic resin material is an optimal synthetic resin material for producing the golf tee according to the present invention.

Next, if another more detailed configuration example in the specific example of the golf tee 1 according to the present invention is described, for example, as shown in FIG. 1 and FIG. It consists of a hollow cylindrical body portion 2 having a cross-sectional shape, and one end portion (first end portion) 3 in the longitudinal direction of the cylindrical body portion 2 has a maximum diameter portion having a predetermined length. A closed bottom surface portion 4 having one diameter portion D1 is formed, and the one end portion (first end portion) 3 of the hollow cylindrical body portion 2 is extended to the other end portion (second end portion). Part) 5 is gradually extended so that the first diameter part D1 increases, or within a predetermined distance from the one end part (first end part) 3, The length of the first diameter portion D1 in the hollow cylindrical body portion 2 is extended in a constant state, and then the first diameter portion. 1 is extended so as to gradually increase, and a plurality of golf ball support pieces 6 are radially formed on the other end portion (second end portion) 5 or in the vicinity thereof. A golf ball mounting portion 8 that is individually extended and projected to form a golf ball receiving portion 7 and a solid rod body portion 9 having a desired length and a desired cross-sectional shape. The one end portion (third end portion) 10 on the side facing the golf ball mounting portion 8 in the longitudinal direction of the body portion 9 is the one end portion of the golf ball mounting portion 8. (First end portion) 3 has a second diameter portion D2 having a length larger than that of the first diameter portion D1, and from the one end portion (third end portion) 10. , Toward the other end portion (fourth end portion) 11 in the longitudinal direction of the solid rod body portion 9 The solid rod portion 9 is extended so as to gradually decrease the second diameter portion D2 or within a predetermined distance from the one end portion (third end portion) 10. In this case, the length of the second diameter portion D2 is kept extended in a constant state, and then the length of the second diameter portion D2 is extended so as to gradually decrease. Specifically, a sharp end portion 12 is formed at the other end portion (fourth end portion) 11 and the one end portion (third end portion) 10 A portion facing the golf ball mounting portion 8 has a fourth diameter portion D4 having a desired planar shape and a desired thickness, and having a length larger than the length of the second diameter portion D2. A ground piercing portion 14 to which a flange portion 13 having the same is formed, and the one end portion of the golf ball mounting portion 8 Between the first end portion 3 and the flange portion 13 provided at the one end portion (third end portion) 10 of the ground piercing portion 14 facing the golf ball mounting portion 8. The first end at the one end (first end) 3 of the golf ball mounting portion 8 having a desired length and a desired cross-sectional shape. A golf tee 1 including a connecting portion 15 having a third diameter portion D3 having a length shorter than the diameter portion D1, and the golf ball mounting portion 8, the ground piercing portion 14, and the The connecting portion 15 is a golf tee 1 having a structure integrally molded with a synthetic resin material having the same composition.

Below, the design structure of each component specifically specified in relation to the selected synthetic resin material in the overall configuration of the golf tee 1 according to the present invention will be described in detail. .
First, if the golf ball mounting portion 8 on which the golf ball 30 constituting the part of the golf tee 1 according to the present invention is placed is described, the golf ball mounting portion 8 has a desired length. For example, it is composed of a hollow cylindrical body portion 2 having a length in the longitudinal direction of 20 mm to 30 mm and a desired cross-sectional shape such as a circular shape or a polygonal shape.
As is apparent from the cross-sectional view in FIG. 2, the cylindrical portion 2 is continuously continuous from the upper end portion 5 (that is, the second end portion) to the lower end portion 3 (that is, the first end portion) 3. It is desirable that the space region portion 16 is formed in a hollow shape, and a continuous space region portion 16 is formed therein.
This is because the cylindrical body portion 2 is configured as a hollow cylindrical body portion, and as a result of imparting flexibility to the cylindrical body portion, the cylindrical body portion 2 of the golf tee 1 is moved together with the golf ball 30 by the club head. The cylindrical body part 2 absorbs impact force and impact friction and is easily deformed when hit, thereby preventing the golf ball mounting part 8 from being broken and enabling multiple use. Become.

On the other hand, the cross-sectional shape of the hollow space region portion 16 in the golf ball mounting portion 8 is not particularly specified, but as described above, the cross-sectional shape of the outer peripheral edge portion of the cylindrical body portion 2 It is a specific example that preferably has the same or approximate cross-sectional shape.
Moreover, the wall thickness between the said cylindrical part 2 and the said hollow space area | region part 16 is not specifically limited, It is possible to set to arbitrary thickness.
Further, the lower end portion of the cylindrical portion 2 in the golf ball mounting portion in the present invention, that is, one end portion (first end portion) in the longitudinal direction of the cylindrical portion 2. 3 forms a closed bottom surface portion 4.
That is, the hollow cylindrical body portion 2 in the golf ball mounting portion 8 in the present invention has a configuration in which one end portion, that is, the lower end portion 3 is closed with a sealed wall material. The other end portion, that is, the upper end portion 5 forms an open end portion communicating with the outside.

The closed bottom surface portion 4 in the present invention has a first diameter portion D1 having a maximum diameter portion of a predetermined length, and the length of the first diameter portion D1 is particularly limited. Although not intended, it is desirably 4.50 mm to 5.50 mm, for example, and preferably 5.0 mm.
Furthermore, the configuration shape of the hollow cylindrical body portion 2 in the present invention is from the one end portion (first end portion) 3 toward the other end portion (second end portion) 5, Although it may have a uniform diameter portion, it may preferably adopt a configuration in which the first diameter portion D1 is extended so as to gradually increase or The length of the first diameter portion D1 in the hollow cylindrical body portion 2 is a predetermined distance from one end portion (first end portion) 3, for example, about several millimeters to several tens of millimeters. It may be configured such that the extension portion is maintained in a constant state and then the first diameter portion D1 is extended so as to gradually increase.
The diameter of the open end at the upper end 5 of the hollow cylindrical body 2 in the golf ball mounting portion 8 in the present invention, that is, the fifth diameter D5 is, for example, 10 mm to 18 mm. It is a specific example that it is desirable to form to the extent.

On the other hand, a plurality of golf ball support pieces 6 are individually arranged radially on the upper end portion 5 of the hollow cylindrical body portion 2 in the golf ball mounting portion 8 in the present invention or in the vicinity thereof. It is a specific example that it is desirable that the extended protrusion is made, and a golf ball receiving portion 7 is formed by the several golf ball support piece portions 6.
The golf ball support piece 6 is integrally protruded outward from the center line by about 5 mm to 10 mm continuously along the enlarged direction line of the outer wall portion of the hollow cylindrical body portion 2. Is.

On the other hand, the ground piercing portion 14 constituting the golf tee 1 according to the present invention includes a non-hollow solid rod portion 9 having a desired length and a desired cross-sectional shape, and the solid rod portion. Although the length in the longitudinal direction of 9 is not particularly limited, for example, it is desirable to appropriately select in the range of 25 mm to 50 mm, and the cross-sectional shape is not particularly limited, For example, it is desirable that the solid rod body portion 9 has a circular shape, a polygonal shape, or the like.
Further, in the ground piercing portion 14 according to the present invention, the one end portion (third end portion) 10 on the side facing the golf ball mounting portion 8 is in the golf ball mounting portion 8. It is necessary to have a second diameter portion D2 having a length larger than the first diameter portion D1 at the one end portion (first end portion) 3.
Specifically, the second diameter portion D2 is desirably, for example, 5.04 mm to 6.16 mm. As a more preferable specific example, the length D2 of the second diameter portion is 5. 8 mm.

Furthermore, the other end portion 11 (that is, the fourth end portion) of the solid bar portion 9 in the ground piercing portion 14 according to the present invention facilitates the operation of inserting the substrate portion 4 into the ground. It is a specific example that it is desirable to form the sharpened projecting portion 12 so that it can be achieved, so that the solid rod body portion 9 is formed from the desired portion of the intermediate portion to the pointed portion. 11, it is desirable that the diameter portion, that is, the length of the second diameter portion D <b> 2 is gradually decreased toward the tip portion.
More specifically, the non-hollow in the circumstances rod portion 9 inside, viewed in the longitudinal direction, the one end portion 10 (third end of) longitudinal of the in circumstances rod portion 9 The second diameter portion D2 is gradually extended toward the other end portion (fourth end portion) 11 in the direction so as to decrease, or the one end portion (third For a predetermined distance from the end portion 10, for example, between 10 mm and 30 mm, the extension is performed while the length of the second diameter portion D <b> 2 in the solid rod body portion 9 is maintained in a constant state. After that, it is extended so that the length of the second diameter portion D2 gradually decreases, and finally, the other end portion (fourth end portion) 11 has a sharp end. The part 12 may be configured to be formed.

On the other hand, the golf tee 1 according to the present invention faces the golf ball mounting portion 8 at the one end portion (third end portion) 10 of the solid rod portion 9. A flange portion 13 having a desired planar shape and a desired thickness is joined to a portion constituting the surface, and the planar shape and thickness of the flange portion 13 are not particularly limited. However, for example, it is preferable that the thickness is set to about 1.5 mm to 3 mm in a circular or polygonal planar shape.
When the golf tee 1 according to the present invention is pierced and fixed on a desired ground surface in a desired tee ground, the flange portion 13 has a center axis of the golf tee 1 on the ground surface of the tee ground. It has a function of assisting the golf player so as to pierce substantially perpendicularly. Further, the flange portion 13 has a state in which the flange portion 13 is in contact with the ground surface of the tee ground. The golf ball 30 is preferably a specific example in which the golf ball 30 is provided at a standard height from the ground surface of the tee ground.

Further, the flange portion 13 has a function that allows the golf tee 1 according to the present invention to be pierced perpendicularly to the ground surface of the tee ground, and therefore the plane formed by the flange portion 13. This is a specific example in which it is desirable that the center axis line in the longitudinal direction of the ground piercing portion 14 is arranged to be orthogonal.
Furthermore, the length of the diameter of the flange portion 13 used in the present invention, that is, the maximum length (fourth diameter portion D4) is not particularly limited. The length of the diameter portion indicated by the one end portion (third end portion) 10 of the solid bar portion 9 in the piercing portion 14, that is, a length longer than the second diameter portion D 2. What is set is a desirable specific example, for example, preferably 10.8 mm to 13.2 mm, and this length is, of course, the lower end portion 3 of the golf ball mounting portion 8. Needless to say, the length of the maximum diameter portion of the bottom surface portion 4 is set to be longer than the first diameter portion D1.
In addition, on the outer peripheral surface of the solid bar portion 9 of the ground piercing portion 14 in the present invention, the outer peripheral surface 32 of the solid bar portion 9 in the ground piercing portion has an underground surface. to increase the frictional effect of the, there is a variety of shapes, along the longitudinal direction of the in circumstances rod section 9, in a direction perpendicular to the longitudinal central axis of the in circumstances rod section 9, a predetermined It is one of the simplest examples in which the plurality of friction generating portions 31 composed of the annular protrusions 33 having the height of are arranged easily.

The friction generating portion 31 used in the present invention is composed of an annular protrusion that protrudes outward from the surface of the outer peripheral surface 32 of the solid rod portion 9. The cross-sectional shape, the height or arrangement interval of the protrusions are not particularly limited, and may be arbitrarily set. For example, the cross-sectional shape may be a hemisphere or a rectangle. , Having a cross-sectional shape selected from triangles and the like, and the height of the protrusion may be, for example, 0.2 mm to 0.5 mm from the main body surface portion of the cylindrical body, and the mutual arrangement thereof The interval and the number of use may be, for example, 3 to 7 and arranged at a mutual interval of 2 mm to 10 mm.
Of course, the friction generating part 31 in the present invention is also a specific example that is preferably formed by integral molding using the same synthetic resin component as that of the above-described constituent members.
And the said friction generation part 31 arrange | positioned on the outer peripheral surface 32 of the said solid-shaped rod part 9 used in this invention functions as a resistance component at the time of pulling out the said golf tee 1 from the ground. Therefore, the golf tee can be prevented from being scattered in an unexpected direction by the impact force at the time of a tee shot.
In the golf tee 1 according to the present invention, the connecting portion 15 that integrally connects and connects the golf ball mounting portion 8 and the substrate portion 14 is arranged and formed.
That is, the connecting portion 15 used in the present invention is composed of a rod-like body having a desired length and a desired cross-sectional shape, and the length in the longitudinal direction and the cross-sectional shape thereof are particularly Although not specified, for example, it is desirable to be a solid rod body (that is, a non-hollow body) that is a circular or polygonal solid cylindrical body , and the length in the longitudinal direction thereof is For example, it is set to 8 mm to 12 mm, preferably 10 mm.

On the other hand, the connecting portion 15 used in the present invention has an upper end portion 21 which is one end portion in the longitudinal direction thereof and the one end portion (first portion) of the golf ball mounting portion 8. Are joined and fixed to the bottom surface of the closed bottom surface portion 4 formed at the end portion 3 through an integral molding technique, and at the other end portion in the longitudinal direction of the connecting portion 15. At a certain lower end portion 20, the flange portion provided at one end portion (third end portion) 10 of the solid rod body portion 9 in the ground piercing portion 14 facing the golf ball mounting portion 8. It is joined and fixed to the upper surface of 13 through an integral molding structure.

Further, the length of the diameter portion, which is the maximum length of the cross-sectional shape of the connecting portion 15 used in the present invention, that is, the length of the third diameter portion D3 is the golf ball mounting portion. It is necessary that the length is set to be shorter than the first diameter portion D1 in the one end portion (first end portion) 3 in FIG.
The length of the third diameter portion D3 in the present invention is not limited to a specific value depending on the engineering resin to be used. For example, in the case of nylon 6 or nylon 66, the length is 3 It is .16 mm to 2.64 mm, and more preferably about 2.4 mm is practical.
In other words, the length of the third diameter portion D3 in the connecting portion 15 is one end portion of the solid bar portion 9 in the ground piercing portion 14. It shows that the upper end portion 10 is set shorter than the second diameter portion D2.
On the other hand, the ratio of the length of the connecting portion 15 to the length L2 in the longitudinal direction of the connecting portion 15 in the present invention (the length D3 of the third diameter portion) depends on the engineering resin used. Although not particularly limited, for example, when the resin used is nylon 6 or nylon 66, 0.22 to 0.27 are desirable specific examples.

Next, in the present invention, the basic configuration of the golf tee 1 has been determined, but the present invention is further described in the present invention using the same kind of specific synthetic resin. In order to exert such excellent operational effects, it has been learned through the numerous tests and analyzes described above that the structural balance of each component according to the present invention is important. As parameters, the length D1 of the first diameter portion, which is the maximum diameter of the lower end portion of the golf ball mounting portion 8 in the golf tee 1, and the maximum diameter portion in the cross-sectional shape of the connecting portion 15. The ratio with the length D3 of the third diameter portion, that is, (D1 / D3) and the maximum diameter portion of the first end portion of the solid bar portion 9 in the ground piercing portion 14 To the length D2 of the second diameter portion and the length D3 of the third diameter portion, which are lengths The ratio (D2 / D3) to, by limiting the ratio of the length of the first of said second diameter portion to the length D1 of the diameter D2 (D2 / D1) to a specific value, the present invention It has been found that the preferable performance and functionality of the golf tee 1 according to the above can be exhibited more remarkably.

The present inventor has obtained the knowledge that it is desirable to design the structure so that each of the above values satisfies the following conditions through many experiments and analyzes described above.
That is, (1) the ratio (D1 / D3) of the length D1 of the first diameter portion to the length D3 of the third diameter portion is approximately 2.0,
(2) The ratio (D2 / D3) of the length D2 of the second diameter portion to the length D3 of the third diameter portion is about 2.4,
(3) The ratio (D2 / D1) of the length D2 of the second diameter portion to the length D1 of the first diameter portion is around 1,17;

Next, in the present invention, it is one of desirable examples that at least a curved portion (R (R) portion) is provided at a joint portion between the main constituent elements according to the present invention.
That is, in a specific example according to another aspect of the present invention, the golf ball mounting portion 8 is formed on one end (first end) 3 of the solid rod body portion 9. A first curved portion (R (R1) portion) configured with a desired radius of curvature R1 is formed at a joint portion between the closed bottom surface portion 4 and the one end portion 21 of the connecting portion 15. And a second curved portion configured with a desired radius of curvature R2 at a joint portion between the flange portion 13 attached to the ground piercing portion 14 and the other end portion 20 of the connecting portion 15. (R (R2) portion) is formed, and further, a joint portion between the flange portion 13 and one end portion (first end portion) 10 of the cylindrical portion 9 constituting the ground piercing portion 14 Has a third curved portion (R (R3) portion) formed with a desired radius of curvature R3. It is made.

In the present invention, in a final product that is integrally molded using one kind of synthetic resin material by providing a desired curved portion (R) at the predetermined connecting and joining portion. In addition, it has the effect of improving the breaking strength, the bonding strength, and the wearability of the respective joint fixing portions, and reinforcing the joint fixing portions so that they are not easily broken or separated.
Here, in the present invention, the inventor of the present application analyzed the numerous experiments described above, and as a result, the respective curvature radii Rn at the respective curved portions (R portions) are as follows. It is a specific example that is desirable to set.
That is, (1) the curvature radius R1 in the first curved portion is about 3 to 6 mm,
(2) The curvature radius R2 in the second curved portion is around 3 to 6 mm,
(3) The curvature radius R3 in the third curved portion is around 2 mm.
It is the thing which knew that the thing was desirable.

By the way, with respect to the overall structure of the golf tee 1 according to the present invention, there is an international provision, and as a basic provision, for example, the overall height of the golf tee 1, that is, It is specified that the total length L of the golf ball mounting portion 8, the connecting portion 15, and the ground piercing portion 14 should be designed so as not to exceed 4 inches (that is, 101.6 mm). On the other hand, the length (L1) of the golf ball mounting portion 8, the length (L2) of the connecting portion 15 and the length (L3) of the ground piercing portion 14 are within the range of the prescribed conditions. The designer can set it freely.
Therefore, in the present invention, it is a very important constituent requirement that the length (L2) of the connecting portion 15 in the golf tee 1 is determined by the balance between the raw material used and the diameter thereof. Based on the knowledge that there is, as a result of intensive experiments and considerations, the present inventors have found that when nylon 6 and nylon 66 are used as raw materials, the length (L2) of the connecting portion 15 is 8 mm to 12 mm. Preferably, the conclusion that it is desirable that the length (L2) of the connecting portion 15 is 10 mm is obtained. In the present invention, the length (L2) of the connecting portion 15 ( It is a specific example that it is desirable to design with L2) substantially fixed to 10 mm.

On the other hand, when the total length of the golf ball mounting portion 8 and the connecting portion 15 is set to a standard length of 40 mm, the length of only the golf ball mounting portion 8 (L1) ) Is one of the preferred examples of setting to about 30 mm.
Of course, even in such a specific example, the length (L1) of only the golf ball mounting portion 8 can be freely changed, and the length (L1) of only the golf ball mounting portion 8 is 30 mm. Needless to say, the long golf tee 1 may be used as described above, or the length (L1) may be 30 mm or less to form the short golf tee 1.

In the golf tee 1 according to the present invention, by adopting the technical configuration as described above, the flexibility generated from the specific shape of the connecting portion 15 and the characteristics of the synthetic resin used is achieved. The golf tee 1 does not scatter from the teeed-up point in the tee shot due to a synergistic effect of the bending effect based on and the high friction effect with the ground surface possessed by the ground piercing portion 14. The effect of greatly improving the probability of being held in that position can also be expected, and the most important technical component of the above-mentioned technical component requirements is the length (L2) of the connecting portion 15. Yes, the remaining length excluding the length portion L21 of the curved portion (R portion) R1 and the length portion L23 of the curved portion (R portion) R2 within the length (L2) of the connecting portion 15 Part length Min L21 is also an important technology component for subsequent further, the length D3 is likewise important technical components of the diameter of the connecting portion 15.
Other than the length (L2) of the connecting portion 15, the length portion L21 of the bending portion (R portion) R1 and the length portion L23 of the bending portion (R portion) R2 are also the above-described technical components. Following this, it functions as an important factor.

DESCRIPTION OF SYMBOLS 1 ... Golf tee 2 ... Hollow cylindrical part 3 ... One edge part (1st edge part)
4 ... closed bottom 5 ... the other end (second end)
6 ... Golf ball support piece 7 ... Golf ball receiving part 8 ... Golf ball mounting part 9 ... Solid rod body part 10 ... One end (third end)
11 ... The other end (fourth end)
DESCRIPTION OF SYMBOLS 12 ... Sharp edge part 13 ... Flange part 14 ... Ground piercing part 15 ... Connecting part 16 ... Space area part 20 ... Lower end part 21 of connecting part ... Upper end part 30 of connecting part ... Golf ball 31 ... Friction generating part 32 ... Outer peripheral surface 33 ... projection

Claims (7)

A hollow cylindrical body portion having a desired length and a desired cross-sectional shape, and one end portion (first end portion) of the hollow cylindrical body portion is a closed shape having a first diameter portion D1. A bottom surface portion is formed, and a plurality of golf ball support pieces are individually radially extended and projected from the other end portion (second end portion) of the hollow cylindrical body portion. A golf ball mounting portion in which a golf ball receiving portion is formed;
One end portion (third end portion) on the side facing the golf ball mounting portion in the longitudinal direction of the solid rod portion, comprising a solid rod portion having a desired length and a desired cross-sectional shape. Part) has a second diameter part D2 having a length larger than that of the first diameter part D1 in the golf ball mounting part, and the other in the longitudinal direction of the solid rod body part. The end portion (fourth end portion) is formed with a sharp end portion, and the portion facing the golf ball mounting portion at the one end portion (third end portion) Includes a ground piercing portion in which a flange portion having a fourth diameter portion D4 having a length larger than the length of the second diameter portion D2 is formed, and
The one end portion (first end portion) of the golf ball mounting portion and the one end portion (third end portion) of the ground piercing portion facing the golf ball mounting portion. The one end portion (first end portion) of the golf ball mounting portion that has a desired length and a desired cross-sectional shape and is connected and disposed between the flange portion provided. And a connecting portion having a third diameter portion D3 having a length shorter than that of the first diameter portion D1, and the golf ball mounting portion and the ground stab. The portion and the connecting portion are golf tees having a structure integrally molded with a synthetic resin material having the same composition, and the flange portion has a thickness of 1.5 mm to 3 mm, Has a polygonal planar shape, but still the flange The plane of the flat portion formed on the surface facing the tip end portion (fourth end portion) of the ground piercing portion is formed so as to be orthogonal to the central axis of the ground piercing portion. However, the ratio of the length of the diameter of the connecting portion (the length of the third diameter) D3 to the length L2 in the longitudinal direction of the connecting portion is 0.22 to 0.27. A featured golf tee.   The synthetic resin material is one synthetic resin material selected from so-called engineering resins such as nylon 6 resin, nylon 66 resin, nylon 12 resin, thermoplastic polyester elastomer resin, polyacetal resin, polycarbonate resin, or the like. The golf tee according to claim 1. The length D1 of the first diameter portion is 4.5φ to 5.5φ,
The golf tee according to claim 1 or 2, wherein the length D3 of the third diameter portion is 2.16φ to 2.64φ.   The ratio (D1 / D3) of the length D1 of the first diameter portion to the length D3 of the third diameter portion is 2.0, according to any one of claims 1 to 3, Golf tee. In the joined portion between the closed bottom surface portion formed on one end portion (first end portion) of the cylindrical body portion and the one end portion of the connecting portion in the golf ball mounting portion, A first curved portion (R (R) portion) configured with a desired radius of curvature R1 is formed, and the flange portion attached to the ground piercing portion and the other end portion of the connecting portion A second curved portion (R (R) portion) configured with a desired radius of curvature R2 is formed in the joint portion, and further, the solid rod that constitutes the flange portion and the ground piercing portion A third curved portion (R (R) portion) configured with a desired radius of curvature R3 is formed at a joint portion with one end portion (first end portion) of the portion. The golf tee according to any one of claims 1 to 4. The radius of curvature R1 in the first curved portion is 3 to 6 mm, the radius of curvature R2 in the second curved portion is 3 to 6 mm, and the radius of curvature in the third curved portion is 3 to 6 mm. The golf tee according to claim 5, wherein the curvature radius R3 is 2 mm. The golf tee according to any one of claims 1 to 6, wherein a length L2 of the connecting portion in a longitudinal direction is 8 mm to 12 mm.

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